Question

simply (5+√7)(2+√5)​

Answer 1

Answer:

$(5 + \sqrt{7} )(2 + \sqrt{5} ) \\ = 10 + 5 \sqrt{5} + 2 \sqrt{7} + \sqrt{35} \\ = 5(2 + \sqrt{5} ) + \sqrt{7} (2 + \sqrt{5} )$

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